Question

Simplify and then evaluate the equation when C=2 and R=10

Answer 1

20

Explanation:

We have the following equation:

`c^2+4r-3\cdot(r-c)`

We simplify and we have the following:

`\begin{gathered} c^2+4r-3r+3c=c^2+r+3c \\ c=2,r=10 \\ \text{ replacing} \\ 2^2+10+3\cdot2=4+10+6=20 \end{gathered}`